i have it.
it does slide, however its sideways. it slides out to the left. the keyboard is fantastic, i love it.
no touchscreen, but honestly, touchscreens arent good because they break easily.
speakerphone it does have. i just havent figured out how to work it.
it is a picture phone, with a...
i have a samsung rant too. (: mine just goes directly to a key lock if i dont touch it for 10 seconds. or i just hold down the back key by the numbers. also, i think there is instructions in the manuel on how to put on a few different ones.
my friend has the quickfire. she loves it. the touchscreen is amazing. and texting on it is easy. she lets me play on it all the time. its an awesome phone.
i doubt it. go phone sim cards are especially for the type of phone it is. and the blackjack and blackberry curve are smartphones, the formatting is completely different.
when i got my new phone for christmas, i went from at&t to sprint. no matter what we tried to do, i had to change my number. so prolly not because of the network switch.
hope i helped. :D